Absence of Evidence Versus Evidence of Absence-SAPS-PD

Affiliations

• ¹ Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD; Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, MD. Electronic address: [email protected].
• ² Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD; Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, MD.